Diet of Cape petrel Daption capense during the post-hatching period at Laurie Island, South Orkney Islands, Antarctica

被引:0
|
作者
N. R. Coria
G. E. Soave
D. Montalti
机构
[1] Departamento Biología,
[2] Grupo Aves,undefined
[3] Instituto Antártico Argentino,undefined
[4] Cerrito 1248,undefined
[5] 1010 Buenos Aires,undefined
[6] Argentina Fax: +54 1812 2039; e-mail: coria@ilpla.edu.ar,undefined
[7] Departamento Científico Zoología Vertebrados,undefined
[8] Museo de Ciencias Naturales,undefined
[9] Paseo del Bosque,undefined
[10] 1900 La Plata,undefined
[11] Argentina,undefined
来源
Polar Biology | 1997年 / 18卷
关键词
Lower Number; Sampling Period; Small Proportion; Stomach Content; Diet Composition;
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摘要
The diet of Cape petrel Daption capense was investigated at Laurie Island, South Orkney Islands (60°46′S, 44°42′W), Antarctica, in the period January–February 1996. Stomach contents of adults and regurgitate of chicks were sampled during the post-hatching period. The analysis showed that during the whole sampling period Antarctic krill and fish represented the predominant preys in terms of frequency of occurrence, forming nearly 35.8% and 64% by mass, respectively. The species Electrona antarctica was the most frequent fish prey. Amphipods were present in lower numbers and cephalopods were detected in the diet, but in a very small proportion. Diet composition in terms of frequency of occurrence, mass and number is compared with results of previous studies.
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页码:236 / 239
页数:3
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